Good day, user76512.

Welcome to QuickBooks Community! It's easy to mark all uncategorized trips as personal. Please follow these steps:

1. From the Mileage tab, choose Unreviewed under the Type drop-down.
2. Check all the trips you want to mark as personal.
3. Click the Mark as personal.

Here are some of the articles for more details about mileage:

• Automatically track mileage in QuickBooks Self-Employed
• Learn about standard mileage and actual expenses deduction methods

Post again here if you need anything else. Stay safe!